It requires ongoing maintenance and continual improvement, which ensures that policies and procedures are kept up to date, resulting in better protection for your sensitive information. It gives you credibility with staff, clients and partner organisations, and demonstrates due diligence. It helps you comply with corporate governance requirements.
Full Answer
The maintenance of the security system is as important as its engineering and installation phase. These are complex systems with different technological equipment that have to be 100% operational if we want them to fulfill their function.
With the rise in cybersecurity risks, information security management has become even more important. Many industries have mandated information storage, usage, transmission, and disposal compliance requirements that are monitored by government and/or industry regulators.
A computer attack can cause parts of the security system to stop working, but it can also be used to erase or steal vital information. Corrective maintenance is aimed at repairing or replacing security system elements that are not working properly. It is a reactive system: something does not work and is repaired or replaced until it works well.
Using a framework such as the NIST model or ISO 27001, an information security management plan defines and implements controls that focus on running the information system, security methods, and technical controls associated with the technology solutions.